Lock



J. M. HOLDA Jan. 19 1926.

LOCK

Filed July 28, 1924 INVENTOR Swhnflflofdw mi 1 ATTORNEY Patented Jan.19, 1926.

UNITED STATES JOHN M. Horne, or CHICAGO, ILLINOIS.

LOCK.

Application m July 28, 1924. Serial no. 728,533.

fu'l li'nprovei'iients' in Locks, of which the lti following is aspecification.

This invention relates generally to locks, having more particularreference to a lock whose bolt is arranged for retraction by a pushbutton, the invention having for an object the provision of a novel lockof this sort, a further object of the invention relating to the.provision of a novel arrangement of parts in which the device forholding the bolt retracted is utilized also to retain it in lockingposition.

For further comprehension of the invention, and of the objects andadvantages thereof, reference will be had to the following descriptionand accompanying drawing, and to the appended claims in which thevarious novel features of the invention are more particularly set forth.

Fig. 1 of the drawing is a longitudinal vertical sectional view of myimproved lock, this view being taken on the line 11 of Fig. 2, the lockbeing here shown as apphed to an automobile door.

Fig. 2 is a transverse sectional view taken on the line 2-2 of Fig. 1.

Fig. 3 is a fragmentary longitudinal sectional view taken on the line 33of Fig. 2.

Fig. 4 is a face view showing my improved lock applied to a gate.

As here shown my improved lock comprises the rectangular casing which isadapt ed to be attached in any ordinary manner upon the door to belocked. Extending horizontally in this casing, a short dlstance from thebottom thereof, is a partition 11 from which depends a guide block 12through which the bolt 13 extends slidably, this bolt projecting at oneend through a suitable aperture in the end adjacent wall of the casingto engage keeper elements such as indicated at 14. The bolt haspivotally attached to its inner or rear end a link 16 which is pivotallyattached at one end to the lower end of a lever 17 that extendsobliquely in the casing and has pivotally attached to its other end aplunger pm 18 extending downward through an aperture 19 in the top wallof the casing. The pin has a head 18' on its lower end, the aperture 19being countersunk on the top side to allow the head 18 to enterpartially therein. The aperture 19 is of sufficient size to permit ofslight swinging movement of the pin as the latter moves with the lever17. The" lever 17 is suitably fulcruined in the casing between its endsas at 20. Connected at one en d-to this lever, below its fulcriun point,and atthe other end to the ing 10, is a coiled tension spring 22 whichacts to normally urge the bolt 13 to locking position.

The bolt is positively retained against retraction by means of avertical bar 25 which is slidably guided in the casing and has at itsupper end a lateral projection or stud 26 which engages in a verticaloffset 27 from one end of a longitudinal groove 28 in one face of thebolt, the bar being held in position with the stud engaged in thisoffset by means of a flat spring 29 connected at one end to the casing10 and engaging at its other end under a lip 30 projected from one sideof the bar. Pivoted a short distance from its upper end as 33 to thelower eno. of the bar 25 is a latch or'dog 34 whose other end projectsupward through a slot 35 in the top wall of the casing, the upper end ofthis dog being normally positioned some distance below the bottom faceof the bolt 13. The bar 25 as will be apparent, holds the bolt againstretraction until the dog 34 is pushed upward tobring the stud orprojection 26 on the bar into registry with the groove 2 when the boltmay be retracted by pushing downward on the pin 18. hen the bar 25 is inraised position the upper end of the dog 34 is in close a'djacence tothe top of the bolt 13, and may be caused to bite against the said bolt,to retain the latter retracted, by swinging the dog'to an approximatelyvertical position. The partition element 11 has an aperture 37 in thebottom thereof to receive the end of the dog 34.

In Fig. 4 I have shown the invention applied to a gate, indicatedgenerally at 40, the post 41 being provided with a keeper member 14' toreceive the bolt.

Having thus described my invention, what I claim as new and desire toprotect by Letters Patent of the United States is as follows 1. A lookcomprising a casing, a bolt slidable therein, means for retracting saidbolt, said bolt being formed on one face with a longitudinal groovehaving a vertical offset at one end, a bar slidable in the casingtransversely to the said bolt and having at its lower end a projectionnormally engaging in said offset from said groove to hold the boltagainst retraction, and a dog pivoted to said bar and projecting at oneend through the casing and forming the medium through Which the said barmay be moved to bring the said projection thereon into registry with thelongitudinal portion of said groove, said dog being arranged to grip thesaid bolt by swinging movement of the dog when in depressed position.

2. A lock comprising a casing, a bolt slidable therein, means forretracting said bolt, said bolt being formed on one face with alongitudinal groove having a vertical offset at one end, a bar slidablein the casing transversely to the said bolt and having at its lower enda projection normally engaging in said offset from said groove to holdthe bolt against retraction, and a dog pivoted to said bar andprojecting at one end through the casing and forming the medium throughwhich the said bar may be moved to bring the said projection thereininto registry with the longitudinal portion of said groove, said dogbeing arranged to grip the said bolt by swinging movement 01 the dogwhen in de-' pressed position, and a spring engaged with said bar andnormally retaining the latter in position with the projection thereonengaged in said offset from said groove.

In testimony whereof l have aliixed my signature.

JOHN M. HOLDA.

